1999 CH21

1999CH21, 2002 SJ62, 2002SJ62, 2002 TD125, 2002TD125, 74447, J99C21H, K02S62J, K02TC5D

All data for this body: [vot]

MPC data
Name (number) 1999 CH21 (74447)
a 3.03477
e 0.08781
i / sin(i) 8.7966 / 0.15293
q 2.76829
Q 3.30125
ω 93.2158
Node 313.3183
m 62.8813
n 0.1864
Epoch 2460800.5
nobs 1720
nopp 21
Years observed 1996-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.036
ep 0.055
sin(ip) 0.171
G 0.150
H 14.110
Mass
D 5.93 0.413
pV 0.182 0.0244
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos 0.1300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0357 0.0551 0.1708 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.93 0.413 0.413 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.182 0.0244 0.0244 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.11 MPC-2023-12-04 MPC-2023-12-04 Phot